Resource supply system

Abstract

A resource supply system, comprising: a floating platform (900) arranged at a water surface; a gas compression device (100) arranged on the floating platform (900) and provided with, communicated with each other, a first gas inlet (110) and a first gas outlet (120; a gas expansion device (200) arranged on the floating platform (900) and used for electrically connecting to a power supply device, the gas expansion device (200) being provided with, communicated with each other, a second gas inlet (210) and a second gas outlet (220), and the second gas outlet (220) being used for discharging gas; a first heat exchange device (300) arranged on the floating platform (900) and provided with, communicated with each other, a first inlet (311) and a first outlet (312), the first inlet (311) being communicated with the first gas outlet (120), and the first outlet (312) being communicated with the second gas inlet (210); and a seawater distillation device (400), the seawater distillation device (400) being able to make a heat exchange with the first heat exchange device (300) and used for communicating with a water supply device.

Description

Resource supply system

[0001] This application claims priority to Chinese Patent Application No. 2024109642248, filed on July 17, 2024, entitled “Resource Supply System”, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the technical field of marine resource supply, and in particular to a resource supply system. Background Technology

[0003] my country's total sea area is approximately 4.73 million square kilometers. In order to develop and utilize marine resources in depth and ensure that ships at sea can be replenished with resources such as electricity and fresh water, ships usually need to choose nearby islands to dock and use the electricity and fresh water on the islands to replenish resources for ocean-going ships. However, this method of replenishing resources will cause ships to temporarily deviate from their course, thereby affecting the ship's travel speed.

[0004] Summary of the Invention

[0005] Therefore, it is necessary to provide a resource supply system to address the problem that traditional resource replenishment methods affect the speed of ships.

[0006] This application provides a resource supply system, which includes:

[0007] A floating platform, the floating platform being positioned on the water surface;

[0008] A gas compression device, wherein the gas compression device is disposed on the floating platform and has a first air inlet and a first air outlet connected in communication;

[0009] A gas expansion device is provided on the floating platform and is used to be electrically connected to a power supply device. The gas expansion device has a second air inlet and a second air outlet, and the second air outlet is used to discharge gas.

[0010] A first heat exchange device, disposed on the floating platform and having a communicating first inlet and a first outlet, the first inlet communicating with a first air outlet and the first outlet communicating with a second air inlet; and

[0011] A seawater distillation device, which is capable of exchanging heat with the first heat exchange device, and is used to connect to a water supply device.

[0012] In this resource supply system, gas enters a gas compression device through a first inlet. The gas compression device compresses the gas to obtain high-pressure gas. During the compression process, the high-pressure gas carries a certain amount of heat of compression. This high-pressure gas with heat of compression exits from a first outlet and enters a first heat exchanger through a first inlet. The heat of compression carried by the high-pressure gas is transferred to the first heat exchanger. The first heat exchanger then exchanges heat with a seawater distillation device to transfer the heat of compression to the seawater distillation device, which then distills the seawater to obtain fresh water. After the heat transfer is completed in the first heat exchanger... High-pressure gas is discharged from the first outlet and enters the gas expansion device through the second inlet. The high-pressure gas expands in the gas expansion device and outputs external work and outputs electrical energy to the power supply device. The floating platform can be set on the water to replenish the power of passing ships through the power supply device and to replenish the fresh water of passing ships through the water supply device. Compared with traditional technology, the above-mentioned resource supply system can generate fresh water resources and electrical energy resources on the floating platform to supply ships passing on the water, so that ships can obtain electrical energy resources and fresh water resources without changing their routes, and will not affect the ship's travel speed.

[0013] Details of one or more embodiments of this application are set forth in the following drawings and description. Other features, objects, and advantages of this application will become apparent from the specification, drawings, and claims. Attached Figure Description

[0014] To better describe and illustrate embodiments and / or examples of this application, reference may be made to one or more accompanying drawings. Additional details or examples used to describe the drawings should not be considered as limiting the scope of any of the disclosed applications, the currently described embodiments and / or examples, or the best mode of these applications as currently understood.

[0015] Figure 1 is a schematic diagram of the overall structure of a resource supply system according to an embodiment.

[0016] Figure 2 is a schematic diagram of the working principle of the gas compression device and the gas expansion device according to an embodiment.

[0017] Figure 3 is a schematic diagram of a portion of a resource supply system according to an embodiment.

[0018] Figure 4 is a schematic diagram of the structure of a compression heat exchange unit according to an embodiment.

[0019] Figure 5 is a schematic diagram of another part of the resource supply system described in one embodiment.

[0020] Figure 6 is a schematic diagram of the structure of a heat exchange expansion unit according to an embodiment.

[0021] Figure 7 is a schematic diagram of the structure of the first heat exchange device according to an embodiment.

[0022] Figure 8 is a schematic diagram of the structure of the second heat exchange device according to an embodiment.

[0023] Figure 9 is a structural schematic diagram of a heating device according to an embodiment.

[0024] Explanation of reference numerals in the attached figures:

[0025] 100. Gas compression device; 110. First air inlet; 120. First air outlet; 130. Compression heat exchange unit; 200. Gas expansion device; 210. Second air inlet; 220. Second air outlet; 230. Heat exchange expansion unit; 240. Low temperature expansion device; 250. Refrigeration device; 251. Ice making mechanism; 252. Refrigeration mechanism; 300. First heat exchange device; 310. First refrigeration module; 311. First inlet; 312. First outlet; 320. First heating module; 321. Second inlet; 322. Second outlet; 400. Seawater distillation device; 410. First valve body; 420. Second valve body; 500. Heat storage device; 510. Heat inlet... 520. Heat outlet; 600. Cold storage device; 610. Cold inlet; 620. Cold outlet; 700. Heating device; 710. Heat exchange pipe section; 720. Heating pipe section; 800. Second heat exchange device; 810. Second heating module; 811. Third inlet; 812. Third outlet; 820. Second refrigeration module; 821. Fourth inlet; 822. Fourth outlet; 900. Floating platform; 911. Anchor chain; 912. Anchor body; 920. Gas storage device; 921. Vent; 922. Liquid inlet; 923. Liquid outlet; 930. Gas pipeline; 931. First gas branch; 932. Second gas branch; 933. First valve; 934. Second valve. Detailed Implementation

[0026] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. It should be understood that these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this application.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number or order of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0029] Please refer to Figures 1 to 8. One embodiment of this application provides a resource supply system, including a floating platform 900, a gas compression device 100, a gas expansion device 200, a first heat exchange device 300, and a seawater distillation device 400. The floating platform 900 is positioned on the water surface; the gas compression device 100 is located on the floating platform 900 and has a communicating first air inlet 110 and a first air outlet 120; the gas expansion device 200 is located on the floating platform 900 and is electrically connected to a power supply device. The device has a second air inlet 210 and a second air outlet 220, which are connected to each other. The second air outlet 220 is used to discharge gas. A first heat exchange device 300 is provided on the floating platform 900 and has a first inlet 311 and a first outlet 312, which are connected to each other. The first inlet 311 is connected to the first air outlet 120 and the first outlet 312 is connected to the second air inlet 210. A seawater distillation device 400 is provided, which is capable of exchanging heat with the first heat exchange device 300 and is used to connect with a water supply device.

[0030] In the aforementioned resource supply system, gas enters the gas compression device 100 through the first inlet 110. The gas compression device 100 compresses the gas to obtain high-pressure gas. During the compression process, the high-pressure gas carries a certain amount of heat of compression. The high-pressure gas with this heat of compression is discharged from the first outlet 120 and enters the first heat exchange device 300 through the first inlet 311. This allows the heat of compression carried by the high-pressure gas to be transferred to the first heat exchange device 300. The first heat exchange device 300 then exchanges heat with the seawater distillation device 400 to transfer the heat of compression to the seawater distillation device 400 for distilling seawater to obtain fresh water. After heat transfer within 300, the high-pressure gas is discharged from the first outlet 312 and enters the gas expansion device 200 through the second inlet 210. The high-pressure gas expands within the gas expansion device 200 and outputs external power and electrical energy to the power supply device. The floating platform 900 can be set on the water to replenish the power of passing ships through the power supply device and to replenish the fresh water of passing ships through the water supply device. Compared with traditional technology, the above-mentioned resource supply system can generate fresh water resources and electrical energy resources on the floating platform 900 to supply ships passing on the water, so that ships can obtain electrical energy and fresh water replenishment without changing their routes, and will not affect the ship's travel speed.

[0031] For illustrative purposes, the gas in the above embodiments can be air. The first air inlet 110 of the gas expansion device 200 is connected to the outside world so that outside air is introduced into the gas compression device 100 through the first air inlet 110. The gas compression device 100 compresses the air to obtain high-pressure air with compression heat. The high-pressure air enters the first heat exchange device 300 from the first inlet 311 so that the compression heat carried by the high-pressure air is transferred to the seawater distillation device 400 through the first heat exchange device 300 for subsequent freshwater generation. It can be understood that the gas in the above embodiments can also be other types of gas besides air, and no specific limitation is made here.

[0032] The resource supply system also includes a generator. High-pressure gas enters the gas expansion device 200 through the second air inlet 210. The high-pressure gas expands and depressurizes in the gas expansion device 200 to output external work. The generator converts this external work into electrical energy and transmits it to the power supply device.

[0033] The seawater distillation apparatus 400 can absorb the heat from the first heat exchanger 300 and use this heat to distill seawater to obtain fresh water.

[0034] In one embodiment, the resource supply system further includes a storage supply device located on the floating platform 900. The electrical energy generated by the gas expansion device 200 and the fresh water generated by the seawater distillation device 400 can be transported to the storage supply device for storage. Ships can dock near the storage supply device, and the storage supply device can replenish the ships with electrical energy and fresh water.

[0035] Referring to Figures 2 and 5, in one embodiment, the resource supply system further includes a cryogenic expansion device 240 and a refrigeration device 250. The cryogenic expansion device 240 is provided with a third air inlet and a cold energy outlet. The third air inlet is connected to the gas expansion device 200, and the cold energy outlet is connected to the refrigeration device 250. The cryogenic expansion device 240 transfers cold energy to the refrigeration device 250 through the cold energy outlet. The refrigeration device 250 is connected to the storage supply device.

[0036] The gas, after being expanded by the gas expansion device 200, enters the low-temperature expansion device 240 for further expansion. The low-temperature expansion device 240 expands the gas to generate cold energy, which is then transferred from the cold energy outlet to the refrigeration device 250 for subsequent refrigeration, thereby achieving efficient utilization of gas cold energy.

[0037] Further, please refer to Figures 2 and 5. The refrigeration device 250 includes an ice-making mechanism 251 and a refrigeration mechanism 252. The ice-making mechanism 251 is connected to the cold energy outlet, and the refrigeration mechanism 252 is connected to the ice-making mechanism 251. The cold energy discharged from the cold energy outlet first enters the ice-making mechanism 251. The ice-making mechanism 251 absorbs part of the cold energy for ice making, and the remaining cold energy is transferred to the refrigeration mechanism 252 for refrigeration, so as to realize multi-stage and efficient utilization of cold energy.

[0038] Referring to Figures 2 and 3, in one embodiment, the resource supply system further includes a heat storage device 500 and a cold storage device 600. The heat storage device 500 is used to store a heat medium, and the cold storage device 600 is used to store a cold medium. The first heat exchange device 300 includes a first refrigeration module 310 and a first heating module 320. The first refrigeration module 310 has a first inlet 311 and a first outlet 312 that are connected. The first heating module 320 has a second inlet 321 and a second outlet 322 that are connected. The first refrigeration module 310 is capable of heat exchange with the first heating module 320. The cold storage device 600 is connected to the second inlet 321, and the heat storage device 500 is connected to the second outlet 322. The seawater distillation device 400 is provided with a distillation inlet and a distillation outlet that are connected. The distillation inlet is connected to the heat storage device 500, and the distillation outlet is connected to the cold storage device 600.

[0039] The cold medium in the cold storage device 600 is discharged and enters the first heating module 320 through the second inlet 321. The high-pressure gas with compressible heat enters the first cooling module 310 through the first inlet 311. The cold medium in the first heating module 320 and the high-pressure gas with compressible heat in the first cooling module 310 can exchange heat, so that the high-pressure gas transfers its compressible heat to the cold medium, turning the cold medium into a hot medium. The hot medium is discharged from the second outlet 322 and enters the heat storage device 500. The hot medium in the heat storage device 500 is discharged and enters the seawater distillation device 400 through the distillation inlet. The seawater distillation device 400 absorbs the heat of the hot medium to distill seawater and obtain fresh water. Subsequently, the hot medium is turned into a cold medium, and the cold medium is discharged from the distillation outlet and enters the cold storage device 600. This cycle is repeated to obtain fresh water resources. This setup can not only effectively obtain fresh water resources, but also reuse the cold and hot medium, saving resources and being more environmentally friendly.

[0040] Referring to Figure 5, in one embodiment, the heat storage device 500 is provided with a connected heat storage cavity, a heat inlet 510 and a heat outlet 520, and the cold storage device 600 is provided with a connected cold storage cavity, a cold inlet 610 and a cold outlet 620. The heat storage cavity is used to store a heat medium, and the cold storage cavity is used to store a cold medium. The cold outlet 620 is connected to the second inlet 321, the second outlet 322 is connected to the heat inlet 510, the heat outlet 520 is connected to the distillation inlet, and the distillation outlet is connected to the cold inlet 610.

[0041] The cold medium in the cold storage chamber is discharged from the cold outlet 620 and enters the first heating module 320 through the second inlet 321. The high-pressure gas with compressible heat enters the first cooling module 310 through the first inlet 311. The cold medium in the first heating module 320 and the high-pressure gas with compressible heat in the first cooling module 310 exchange heat, so that the high-pressure gas transfers its own compressible heat to the cold medium, turning the cold medium into a hot medium. The hot medium is discharged from the second outlet 322 and enters the heat storage chamber through the heat inlet 510. The hot medium in the heat storage chamber is discharged from the heat outlet 520 and enters the seawater distillation device 400 through the distillation inlet. The hot medium transfers its own heat to the seawater distillation device 400 to distill the seawater and obtain fresh water. At this time, the heat of the hot medium is absorbed and converted into a cold medium. The cold medium is then discharged from the distillation outlet and enters the cold storage chamber through the cold inlet 610. This cycle is repeated to obtain fresh water. This setting can not only effectively obtain fresh water resources, but also reuse the cold and hot medium, saving resources and being more environmentally friendly.

[0042] Optionally, the heat medium and cold medium in the above embodiments can be liquid heat exchange mediums such as water and oil, or gas heat exchange mediums, etc. There is no specific limitation here. Preferably, water is used as the heat exchange medium because it is low in cost, easy to replenish and has reliable heat exchange effect.

[0043] For illustrative purposes, in the above embodiments, the heat inlet 510 represents a port for entering the heat medium, the heat outlet 520 represents a port for discharging the heat medium, the cold outlet 620 represents a port for discharging the cold medium, and the cold inlet 610 represents a port for entering the cold medium.

[0044] Referring to Figure 5, in one embodiment, the resource supply system further includes a second heat exchange device 800. The second heat exchange device 800 is provided with a third inlet 811 and a third outlet 812 that are connected. The third inlet 811 is connected to the first outlet 312, and the third outlet 812 is connected to the second air inlet 210. The second heat exchange device 800 is connected to the heat outlet 520 and is capable of exchanging heat with the heat medium.

[0045] The high-pressure gas, compressed by the gas compression device 100 and possessing heat of compression, passes through the first refrigeration module 310 and its temperature decreases. The cooled gas is discharged from the first outlet 312 and enters the second heat exchange device 800 through the third inlet 811. The heat storage device 500 can transfer the heat of the heat exchange medium in the heat storage chamber to the second heat exchange device 800 to heat the gas in the second heat exchange device 800. The heated gas has increased pressure and is discharged from the third outlet 812 and enters the gas expansion device 200 through the second inlet 210. The gas with increased pressure expands and decreases pressure in the gas expansion device 200 to output more external work, so that the gas expansion device 200 can generate more electrical energy and improve power generation efficiency.

[0046] Furthermore, the heat storage device 500 can exchange heat with the second heat exchange device 800 to transfer the heat of the heat medium in the heat storage chamber to the gas in the second heat exchange device 800. After being heated, the gas in the second heat exchange device 800 increases in pressure. The gas with increased pressure expands and decreases in pressure in the gas expansion device 200 to output more external work, thereby generating more electrical energy and improving power generation efficiency.

[0047] Referring to Figure 5, in one embodiment, the second heat exchange device 800 further includes a second heating module 810 and a second cooling module 820. The second heating module 810 has a third inlet 811 and a third outlet 812 that are connected, and the second cooling module 820 has a fourth inlet 821 and a fourth outlet 822 that are connected. The second heating module 810 and the second cooling module 820 are capable of heat exchange. The fourth inlet 821 is connected to the heat outlet 520, and the fourth outlet 822 is connected to the distillation inlet.

[0048] The heat medium in the heat storage chamber is discharged from the heat outlet 520 and enters the second refrigeration module 820 through the fourth inlet 821. The low-temperature gas, after heat exchange in the first refrigeration module 310, is discharged from the first outlet 312 and enters the second heating module 810 through the third inlet 811. The low-temperature gas in the second heating module 810 exchanges heat with the heat medium in the second refrigeration module 820, so that the heat medium transfers its own heat to the low-temperature gas. After being heated, the pressure of the low-temperature gas increases. The gas with increased pressure is discharged from the third outlet 812 and enters the gas expansion device 200. The gas with increased pressure expands and decreases in pressure in the gas expansion device 200 to output more external work, so that the gas expansion device 200 can generate more electrical energy and improve power generation efficiency.

[0049] In one embodiment, the seawater distillation device 400 is a low-temperature multi-effect distillation seawater desalination device. The boiling point of seawater decreases as the pressure decreases, with each pressure corresponding to a boiling point. The internal pressure of the low-temperature multi-effect distillation seawater desalination device is even lower. Therefore, the boiling point of seawater is also lower when it is inside the low-temperature multi-effect distillation seawater desalination device, and the temperature required for distillation is also lower. After the heat medium transfers part of its heat to the low-temperature gas in the second heat exchange device 800, the heat medium enters the low-temperature multi-effect distillation seawater desalination device and uses the remaining heat of the heat medium to distill the seawater to obtain fresh water. The low-temperature multi-effect distillation seawater desalination device requires a low distillation temperature. Therefore, even if there is not much heat remaining in the heat medium, it can still distill the seawater, thereby improving the heat utilization rate and distillation efficiency of the heat medium.

[0050] Furthermore, the principle of a low-temperature multi-effect distillation seawater desalination device is to use the secondary steam generated during distillation as heating steam to heat the feed liquid in the next effect. The feed liquid evaporates in the next effect evaporator, where the pressure and boiling point are lower, generating new secondary steam. This process continues to heat and evaporate the feed liquid in the next effect evaporator, allowing the heat energy consumed by evaporation to be fully reused, thereby reducing energy consumption. In multi-effect distillation, the heat source for the first effect is fresh steam, and the next effect acts as a condenser for the previous effect. The steam generated in the previous effect is condensed in the next effect, thus improving distillation efficiency and energy utilization.

[0051] Please refer to Figures 5 and 9. In one embodiment, the resource supply system further includes a heating device 700, which is provided with a heat exchange tube section 710 and a heating tube section 720. One end of the heat exchange tube section 710 is connected to the distillation outlet and / or the fourth outlet 822, and the other end of the heat exchange tube section 710 is connected to the cold inlet 610. The heating tube section 720 is capable of exchanging heat with the heat exchange tube section 710.

[0052] The heat medium can be discharged from the fourth outlet 822 and / or the distillation outlet and enter the heat exchange tube section 710. The heat medium in the heat exchange tube section 710 can exchange heat with the heating tube section 720 to transfer the heat of the heat medium to the heating tube section 720, thereby achieving heating. After heat exchange, the heat medium becomes a cold medium. The cold medium is discharged from the heat exchange tube section 710 and enters the cold storage chamber of the cold storage device 600 from the cold inlet 610. This arrangement can further improve the energy utilization rate of the heat medium.

[0053] Further, please refer to Figure 9. The heat exchange pipe section 710 is axially spaced from the heating pipe section 720. When the heat medium flows through the heat exchange pipe section 710, it exchanges heat with the heating medium in the heating pipe section 720 to transfer the heat of the heat medium to the heating medium, thereby achieving heating.

[0054] Optionally, the extension shape of the heat exchange pipe section 710 and the heating pipe section 720 can be straight or curved, and the heat exchange pipe section 710 and the heating pipe section 720 can also be arranged to coil around each other to improve heat exchange efficiency.

[0055] In one embodiment, referring to Figure 5, the end of the heat exchange tube section 710 away from the cold inlet 610 is provided with a first branch and a second branch. The heat exchange tube section 710 is connected to the fourth outlet 822 through the first branch and to the distillation outlet through the second branch, so as to realize the parallel connection between the heating device 700 and the seawater distillation device 400. The first branch is provided with a first valve body 410, and a second valve body 420 is provided between the distillation inlet and the fourth outlet 822. When the first valve body 410 is open and the second valve body 420 is closed, the heat medium discharged from the fourth outlet 822 is only used for heating the heating device 700, and the heating effect is better. When the second valve body 420 is open and the first valve body 410 is closed, the heat medium first enters the seawater distillation device 400 from the distillation inlet, and then exits from the distillation outlet and enters the heating device 700, thereby realizing the dual effect of distillation and heating.

[0056] Please refer to Figure 4. In one embodiment, at least two gas compression devices 100 and one heat exchange device 300 are provided and are arranged in a one-to-one correspondence. The gas compression devices 100 and the first heat exchange devices 300 are arranged alternately. Each adjacent gas compression device 100 and the first heat exchange device 300 are combined to form a compression heat exchange unit 130. The first outlet 312 of the previous compression heat exchange unit 130 is connected to the first air inlet 110 of the next compression heat exchange unit 130.

[0057] By setting at least two compression heat exchange units 130, the gas can be compressed in multiple stages and the compressed gas can absorb heat in multiple stages. In this way, not only can the gas have a higher pressure to release more external work for power generation, but also more heat of compression of the gas can be absorbed for seawater distillation, further improving the efficiency of power generation and freshwater production.

[0058] In the embodiment shown in Figure 4, the compression heat exchange unit 130 is provided with three units, namely a first compression heat exchange unit 130, a second compression heat exchange unit 130, and a third compression heat exchange unit 130. The first air inlet 110 of the first compression heat exchange unit 130 is used to introduce gas. After the gas is compressed and heat exchanged by the first compression heat exchange unit 130, it enters the gas compression device 100 of the second compression heat exchange unit 130 from the first air inlet 110. After being compressed and heat exchanged by the second compression heat exchange unit 130, it enters the gas compression device 100 of the third heat exchange unit from the first air inlet 110. Finally, it is discharged from the first outlet 312 of the third compression heat exchange unit 130.

[0059] Taking the above embodiment as an example, when the compression heat exchange unit 130 is provided in other quantities, it is similar to the above embodiment, and will not be described again here.

[0060] As an embodiment that can be implemented simultaneously with the above embodiments, please refer to FIG6. At least two of the second heat exchange device 800 and the gas expansion device 200 are provided and are arranged in a one-to-one correspondence. The second heat exchange device 800 and the gas expansion device 200 are arranged alternately. Each adjacent second heat exchange device 800 and gas expansion device 200 are combined to form a heat exchange expansion unit 230. The second gas outlet 220 of the previous heat exchange expansion unit 230 is connected to the third inlet 811 of the next heat exchange expansion unit 230.

[0061] By setting at least two heat exchange expansion units 230, the gas can be heated in multiple stages and expanded in multiple stages after heating. This allows the gas to have greater pressure, thereby releasing more external work to generate electricity and improving power generation efficiency.

[0062] In the embodiment shown in Figure 6, the heat exchange expansion unit 230 is provided with three units, namely a first heat exchange expansion unit 230, a second heat exchange expansion unit 230, and a third heat exchange expansion unit 230. The third inlet 811 of the first heat exchange expansion unit 230 is used to introduce low-temperature gas. After the gas undergoes heat exchange and expansion in the first heat exchange expansion unit 230, it enters the second heat exchange device 800 of the second heat exchange expansion unit 230 from the third inlet 811. After further expansion and heat exchange in the second heat exchange expansion unit 230, it enters the second heat exchange device 800 of the third heat exchange expansion unit 230 from the third inlet 811. Finally, it is discharged from the second outlet 220 of the third heat exchange expansion unit 230.

[0063] Taking the above embodiment as an example, when the heat exchange expansion unit 230 is provided in other quantities, it is similar to the above embodiment, and will not be described again here.

[0064] Referring to Figure 1, in one embodiment, the resource supply system further includes a gas storage device 920 and a gas transmission pipeline 930. The gas storage device 920 is located on the side of the floating platform 900 facing the water surface. The gas storage device 920 has a connected gas storage chamber and a vent 921. One end of the gas transmission pipeline 930 is connected to the vent 921, and the other end of the gas transmission pipeline 930 has a first gas transmission branch 931 and a second gas transmission branch 932. The first gas transmission branch 931 is connected to the first outlet 312, and the second gas transmission branch 932 is connected to the third inlet 811.

[0065] After being compressed by the gas compression device 100, the gas is heated by the first heat exchange device 300 and discharged from the first outlet 312. The gas discharged from the first outlet 312 can enter the gas transmission pipeline 930 through the first gas transmission branch 931 and enter the gas storage chamber of the gas storage device 920 through the vent 921. When power generation is required, the gas in the gas storage chamber enters the gas transmission pipeline 930 through the vent 921 and enters the second heat exchange device 800 through the second gas transmission branch 932 and the third inlet 811. The second heat exchange device 800 heats the gas and enters the gas expansion device 200 through the third outlet 812 for subsequent power generation. By setting up the gas storage device 920, the pressurized gas can be collected and used to generate electricity when needed, thereby improving the flexibility of the resource supply system. In addition, setting the gas storage device 920 on the side of the floating platform 900 facing the water surface can make full use of the space of the floating platform 900 and reduce costs.

[0066] Please refer to Figure 1. In one embodiment, the gas storage device 920 is further provided with a liquid inlet 922 and a liquid outlet 923, both of which are connected to the gas storage chamber.

[0067] When there is no gas in the gas storage chamber, liquid enters the gas storage chamber through the liquid inlet 922 under atmospheric pressure. After being compressed by the gas compression device 100, the gas has a certain pressure. The pressurized gas enters the gas storage chamber through the gas supply pipe 930 and the vent 921. Since the density of the gas is less than that of the liquid in the gas storage chamber, as the gas is continuously filled into the gas storage chamber through the vent 921, the water in the gas storage chamber is gradually driven out by the gas through the liquid outlet 923. Since the surrounding liquid also has a certain pressure, the filling of the gas storage chamber... The gas inside the chamber also has a certain pressure. When power generation is required, the gas with a certain pressure in the gas storage chamber enters the second heat exchange device 800 through the gas pipeline 930. The second heat exchange device 800 heats the gas to further increase the gas pressure. Subsequently, the gas enters the gas expansion device 200 to generate electricity. With this setup, the implementation cost is low and the energy storage effect is good. The constant pressure energy storage and constant pressure energy release are achieved by utilizing the mutual drive of gas and water, which reduces the residual gas volume in the gas storage chamber and improves the circulation efficiency of the entire system.

[0068] Furthermore, the diameter and length of the liquid inlet 922 and the liquid outlet 923 are determined according to the inflation and deflation time to ensure full utilization of the effective volume of the gas storage chamber.

[0069] Please refer to Figure 1. In one embodiment, the gas storage device 920 adopts a horizontally placed cylindrical gas storage tank, which has good pressure resistance, low cost, and is easy to move in water.

[0070] In one embodiment, the gas pipeline 930 adopts a flexible pressure-bearing pipe to better accommodate the relative movement between the floating platform 900 and the gas storage device 920.

[0071] Please refer to Figure 2. In one embodiment, the first gas supply branch 931 is provided with a first valve 933, which is used to control the opening and closing of the first gas supply branch 931.

[0072] As an embodiment that can be implemented simultaneously with the above embodiments, the second gas supply branch 932 is provided with a second valve 934, which is used to control the opening and closing of the second gas supply branch 932.

[0073] The first valve 933 and the second valve 934 can control the opening and closing of the first gas supply branch 931 and the second gas supply branch 932, respectively, to control the gas flow path. When it is necessary to introduce the compressed gas into the gas storage device 920, the first valve 933 is opened and the second valve 934 is closed. When it is necessary to discharge the gas in the gas storage device 920 to the second heat exchange device 800, the first valve 933 is closed and the second valve 934 is opened. This setting is convenient to operate and has low implementation cost.

[0074] Referring to Figure 1, in one embodiment, the resource supply system further includes an anchor chain 911 and an anchor body 912, one end of the anchor chain 911 being connected to the floating platform 900 and the other end of the anchor chain 911 being connected to the anchor body 912.

[0075] The anchor body 912 is connected to the floating platform 900 via the anchor chain 911. The anchor body 912 sinks to the bottom of the water by its own weight and hooks onto the mud or sand at the bottom, thereby stabilizing the floating platform 900 which is floating on the water surface.

[0076] Furthermore, the gas storage tank is connected to the floating platform 900 via mooring ropes.

[0077] The resource supply system is first assembled and tested at a coastal shipyard. The floating platform 900 can float on the water and be transported to a designated location by tugboats to replenish resources for ships passing by. The location of the resource supply system can be moved and adjusted as needed, and the process is convenient. When moving, the gas in the gas storage device 920 must first be used up or discharged. Then, the anchor body 912 is retrieved by the anchor chain 911, and the gas storage device 920 is retrieved by the mooring rope to facilitate the movement of the floating platform 900.

[0078] Furthermore, after the resource supply system is moved to the designated location, it needs to be connected to wind power generation devices and / or offshore photovoltaic power generation to supply power to the various devices in the resource supply system.

[0079] In one embodiment, the floating platform 900 is further provided with a rotating winding mechanism. The end of the anchor chain 911 furthest from the anchor body 912 is wound around the rotating winding mechanism. The rotating winding mechanism can rotate to wind up and unwind the anchor chain 911 wound around it, thereby achieving the winding up and unwinding of the anchor body 912. When it is necessary to move the floating platform 900, the rotating winding mechanism rotates to wind up the anchor chain 911 and the anchor body 912. After the floating platform 900 is moved to a designated position, the rotating winding mechanism rotates in the opposite direction to unwind the anchor chain 911 and the anchor body 912, thereby stabilizing the floating platform 900.

[0080] Optionally, as shown in Figure 1, the anchor chain 911 can be installed on the floating platform 900 or on the gas storage device 920; no specific limitation is made here.

[0081] Furthermore, a distance sensor is installed on the anchor body 912 to monitor the distance between the anchor body 912 and the bottom of the water. Since the bottom of the water may be uneven, by installing a distance sensor on the anchor body 912 to monitor the distance between the anchor body 912 and the bottom of the water, when the anchor body 912 contacts the bottom of the water, the operator immediately stops rotating the unwinding mechanism to unwind the anchor chain 911, preventing the anchor chain 911 from being unwound too long and contacting the bottom of the water, and avoiding wear or entanglement of the anchor chain 911.

[0082] In one embodiment of this application, the gas storage device 920 is located at a water depth of 500 meters, and the gas compression device 100 has a power of 200 MW and an energy storage capacity of 1000 MWh. The gas compression device 100 compresses atmospheric gas to 5 MPa and stores it in the underwater gas storage device 920 through a gas pipeline 930. During the gas storage process, the air density is less than that of water, and as gas is continuously added, the water in the gas storage chamber is gradually driven out by the gas. Since the static pressure of water at a depth of 500 meters is approximately 5 MPa, the gas storage pressure remains constant at 5 MPa during the energy storage process. The heat of compression generated by the gas compression device 100 is recovered through the first heat exchange device 300 and by water, with the hot water temperature reaching 170°C, and then stored in the heat storage device 500.

[0083] During energy release, the 5MPa high-pressure gas in the gas storage chamber of the gas storage device 920 is released from the gas transmission pipeline 930, driving the gas expansion device 200 to generate electricity. Since the static pressure of water at a depth of 500m is approximately 5MPa, the gas release pressure remains constant at 5MPa during the water-driven energy release process. The high-pressure gas released from the gas storage chamber has a relatively low temperature, between 10-30℃. This cool air passes through the second heat exchanger 800, where it is heated to approximately 140℃ by the hot water released from the heat storage device 500 before entering the gas expansion device 200 to generate electricity. Similarly, when multiple gas expansion devices 200 are installed, multiple second heat exchangers 800 are used for heating before the gas enters its corresponding gas expansion device 200 to generate electricity.

[0084] The hot water collected at 170℃ by the heat storage device 500 is cooled to 75℃ after passing through the second heat exchange device 800. This 75℃ hot water can be directly fed into the seawater distillation device 400 to produce fresh water, or it can be directly fed into the heating device 700 to produce 60℃ hot water for heating. The seawater distillation device 400 and the heating device 700 can operate in series, in parallel, or simultaneously, with the optimal distribution of the 75℃ hot water volume depending on the fresh water and heat load requirements.

[0085] A portion of the gas is drawn from the second gas expansion device 200 into the cryogenic expansion device 240. While generating electricity, the cryogenic expansion device 240 produces -30°C cryogenic gas. The -30 to -15°C cryogenic gas is used to make ice, and the -15 to 0°C gas is used to produce 7 / 14°C chilled water. The capacities of the ice-making mechanism 251 and the refrigeration mechanism 252 are designed according to requirements.

[0086] In addition, the devices in the above embodiments can be connected to each other through different pipelines. Please refer to Figure 1 for the pipeline connection method. Those skilled in the art will understand that other connection methods can also be used to connect the devices, and no specific limitation is made here.

[0087] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0088] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims, and the specification and drawings can be used to interpret the content of the claims.

Claims

1. A resource supply system, comprising: a floating platform configured to be disposed on a water surface; a gas compression device configured to be disposed on the floating platform and having a first gas inlet and a first gas outlet in communication; a gas expansion device configured to be disposed on the floating platform and electrically connected to a power supply device, the gas expansion device having a second gas inlet and a second gas outlet in communication, the second gas outlet configured to discharge gas; a first heat exchange device configured to be disposed on the floating platform and having a first inlet and a first outlet in communication, the first inlet in communication with the first gas outlet, and the first outlet in communication with the second gas inlet; and a seawater distillation device capable of exchanging heat with the first heat exchange device, the seawater distillation device configured to be in communication with a water supply device.

2. The resource provisioning system of claim 1, wherein, The resource supply system further comprises a heat storage device configured to store a heat medium and a cold storage device configured to store a cold medium, the first heat exchange device comprises a first refrigeration module having the first inlet and the first outlet in communication and a first heating module having a second inlet and a second outlet in communication, the first refrigeration module is capable of exchanging heat with the first heating module, the cold storage device is in communication with the second inlet, the heat storage device is in communication with the second outlet, the seawater distillation device is provided with a distillation inlet and a distillation outlet in communication, the distillation inlet is in communication with the heat storage device, and the distillation outlet is in communication with the cold storage device.

3. The resource provisioning system of claim 2, wherein, The heat storage device is provided with a heat storage cavity, a heat inlet and a heat outlet in communication, and the cold storage device is provided with a cold storage cavity, a cold inlet and a cold outlet in communication, the heat storage cavity is configured to store the heat medium, and the cold storage cavity is configured to store the cold medium, the cold outlet is in communication with the second inlet, the second outlet is in communication with the heat inlet, the heat outlet is in communication with the distillation inlet, and the distillation outlet is in communication with the cold inlet.

4. The resource provisioning system of claim 3, wherein, The resource supply system further comprises a second heat exchange device provided with a third inlet and a third outlet in communication, the third inlet is in communication with the first outlet, and the third outlet is in communication with the second gas inlet, the second heat exchange device is in communication with the heat outlet and capable of exchanging heat with the heat medium.

5. The resource provisioning system of claim 4, wherein, The second heat exchange device further comprises a second heating module having the third inlet and the third outlet in communication and a second refrigeration module having a fourth inlet and a fourth outlet in communication, the second heating module is capable of exchanging heat with the second refrigeration module, the fourth inlet is in communication with the heat outlet, and the fourth outlet is in communication with the distillation inlet.

6. The resource provisioning system of claim 5, wherein, The resource supply system further comprises a heating device provided with a heat exchange pipe section and a heating pipe section, one end of the heat exchange pipe section is in communication with the distillation outlet or / and the fourth outlet, the other end of the heat exchange pipe section is in communication with the cold inlet, and the heating pipe section is capable of exchanging heat with the heat exchange pipe section.

7. The resource provisioning system of claim 4, wherein, The gas compression device and the first heat exchange device are provided with at least two and are one-to-one correspondingly arranged, the gas compression device and the first heat exchange device are one-to-one alternately arranged, each adjacent gas compression device and the first heat exchange device are matched to form a compression heat exchange unit, the first outlet of the previous compression heat exchange unit is communicated with the first gas inlet of the next compression heat exchange unit; or / and, The second heat exchange device and the gas expansion device are provided with at least two and are one-to-one correspondingly arranged, the second heat exchange device and the gas expansion device are one-to-one alternately arranged, each adjacent second heat exchange device and the gas expansion device are matched to form a heat exchange expansion unit, the second gas outlet of the previous heat exchange expansion unit is communicated with the third inlet of the next heat exchange expansion unit.

8. The resource provisioning system of claim 4, wherein, The resource supply system further comprises a gas storage device and a gas pipeline, the gas storage device is arranged on the side of the floating platform facing the water surface, the gas storage device is provided with a gas storage cavity and a gas inlet, one end of the gas pipeline is communicated with the gas inlet, the other end of the gas pipeline is provided with a first gas sub-pipeline and a second gas sub-pipeline, the first gas sub-pipeline is communicated with the first outlet, and the second gas sub-pipeline is communicated with the third inlet.

9. The resource provisioning system of claim 8, wherein, The gas storage device is further provided with a liquid inlet and a liquid outlet, and the liquid inlet and the liquid outlet are communicated with the gas storage cavity.

10. The resource provisioning system of claim 1, wherein, The resource supply system further comprises an anchor chain and an anchor body, one end of the anchor chain is connected with the floating platform, and the other end of the anchor chain is connected with the anchor body.

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